Ethier, S [The turret image: an echographic sign useful in lower bile duct obstruction]. [electronic resource] - L'union medicale du Canada Aug 1980 - 1204-6 p. digital Publication Type: English Abstract; Journal Article ISSN: 0041-6959 Subjects--Topical Terms: Cholestasis, Extrahepatic--diagnosisHumansUltrasonography